<template>

    <div>
        <!-- 头部 -->
        <header class="header">
            <!-- 头部的第一行 -->
            <div class="top">
                <div class="container">
                    <div class="loginList">
                        <p>尚品汇欢迎您！</p>
                        <p v-if="!userName">
                            <span>请</span>
                            <!-- 声明式导航 -->
                            <router-link to="/login">登录</router-link>
                            <router-link class="register" to="/register">注册</router-link>
                        </p>
                        <p v-else>
                            <a>{{userName}}</a>
                            <a href="###" class="register" @click="logout">退出登录</a>

                        </p>
                    </div>
                    <div class="typeList">
                        <router-link to="/center">我的订单</router-link>
                        <router-link to="/shopcart">我的购物车</router-link>
                        <a href="###">我的尚品汇</a>
                        <a href="###">尚品汇会员</a>
                        <a href="###">企业采购</a>
                        <a href="###">关注尚品汇</a>
                        <a href="###">合作招商</a>
                        <a href="###">商家后台</a>
                    </div>
                </div>
            </div>
            <!--头部第二行 搜索区域-->
            <div class="bottom">
                <h1 class="logoArea">
                    <router-link class="logo" to="/home">
                        <img src="./images/logo.png" alt="">
                    </router-link>
                </h1>
                <div class="searchArea">
                    <form action="###" class="searchForm">
                        <input type="text" id="autocomplete" class="input-error input-xxlarge" v-model="keyword" />
                        <button class="sui-btn btn-xlarge btn-danger" type="button" @click="goSearch">搜索</button>
                    </form>
                </div>
            </div>
        </header>
    </div>
</template>

<script>
export default {
    name: 'Header',
    data() {
        return {
            keyword: ''
        }
    },
    methods: {
        //点击搜索回调
        goSearch() {
            //路由跳转的时候，如果带有query参数，把原有的query参数带入location并带过去
            if (this.$route.query) { //永远为true
                let location = { name: 'search', params: { keyword: this.keyword } };
                location.query = this.$route.query
                this.$router.push(location)
            }
        },
        //退出登录
        logout() {
            //1、发请求、通知服务器退出登录【清除一些数据：token】
            //2、清除项目当中的数据【userInfo、token】
            this.$store.dispatch('userlogout');
            this.$router.push('/home')
        }
    },
    mounted() {
        //通过全局事件总线清除关键字
        this.$bus.$on("clear", () => {
            this.keyword = '';
        })

    },
    computed: {
        userName() {
            return this.$store.state.user.userInfo.name;
        },
    },
}

</script>

<style scoped>
.header>.top {
    background-color: #eaeaea;
    height: 30px;
    line-height: 30px;
}

.header>.top .container {
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.header>.top .container .loginList {
    float: left;
}

.header>.top .container .loginList p {
    float: left;
    margin-right: 10px;
}

.header>.top .container .loginList p .register {
    border-left: 1px solid #b3aeae;
    padding: 0 5px;
    margin-left: 5px;
}

.header>.top .container .typeList {
    float: right;
}

.header>.top .container .typeList a {
    padding: 0 10px;
}

.header>.top .container .typeList a+a {
    border-left: 1px solid #b3aeae;
}

.header>.bottom {
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.header>.bottom .logoArea {
    float: left;
}

.header>.bottom .logoArea .logo img {
    width: 175px;
    margin: 25px 45px;
}

.header>.bottom .searchArea {
    float: right;
    margin-top: 35px;
}

.header>.bottom .searchArea .searchForm {
    overflow: hidden;
}

.header>.bottom .searchArea .searchForm input {
    box-sizing: border-box;
    width: 490px;
    height: 32px;
    padding: 0px 4px;
    border: 2px solid #ea4a36;
    float: left;
}

.header>.bottom .searchArea .searchForm input:focus {
    outline: none;
}

.header>.bottom .searchArea .searchForm button {
    height: 32px;
    width: 68px;
    background-color: #ea4a36;
    border: none;
    color: #fff;
    float: left;
    cursor: pointer;
}

.header>.bottom .searchArea .searchForm button:focus {
    outline: none;
}
</style>